Quantum non-demolition measurement of photon-arrival using an atom-cavity system

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dc.creatorKojima, Kunihiro
dc.creatorTomita, Akihisa
dc.date2007-02-14
dc.date.accessioned2026-07-07T07:51:57Z
dc.date.available2026-07-07T07:51:57Z
dc.descriptionA simple and efficient quantum non-demolition measurement (QND) scheme is proposed in which the arrival of a signal photon is detected without affecting the qubit state. The proposed QND scheme functions even if the ancillary photon is replaced with weak light composed of vacuum and one-photon states. Although the detection scheme is designed for entanglement sharing applications, it is also suitable for general purification of a single photon state.
dc.description12pages, 4figures, Submitted to Phys. Rev. A
dc.identifierhttps://arxiv.org/abs/quant-ph/0702138
dc.identifierhttp://arxiv.org/abs/quant-ph/0702138
dc.identifierPhys. Rev. A 75, 032320 (2007)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/125705
dc.subjectQuantum Physics
dc.titleQuantum non-demolition measurement of photon-arrival using an atom-cavity system
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